CHECK HARNESS.

1) Disconnect the collation CM connector and the oscillator connector.

2) Using a tester, check continuity between the collation CM connector and oscillator connector.

Connector & terminal

(B421) No. 5 — (D55) No. 4:
(B421) No. 22 — (D55) No. 6:

QUESTION
Is there continuity?
Yes	No
	Repair or replace the open circuit of harness.